Main.C:751:9: error: 'fl_register_images' was not declared ...
--- a/src/mupmate/Main.C
+++ b/src/mupmate/Main.C
@@ -68,6 +68,7 @@
 
 #include <FL/Fl.H>
 #include <FL/fl_ask.H>
+#include <FL/Fl_Shared_Image.H>
 #include <FL/Fl_Tooltip.H>
 
 #include "globals.H"